Home / 20,966.75-28,928.37-14,586.18

Finding the Fourth Proportional to 20,966.75, 28,928.37 and 14,586.18

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Solution

The fourth proportional to 20,966.75, 28,928.37 and 14,586.18 is: 20,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.75 : 28,928.37 = 14,586.18 : x
  2. Step 2: Convert to fraction form
    20,966.75/28,928.37 = 14,586.18/x
  3. Step 3: Cross multiply
    20,966.75x = 28,928.37 × 14,586.18
  4. Step 4: Simplify right side
    20,966.75x = 421,954,358.14
  5. Step 5: Solve for x
    x = 421,954,358.14/20,966.75
  6. Step 6: Final answer
    x = 20,124.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.